Green’s Dictionary of Slang

a euph. for fuck! excl.

1880

Henley & Stevenson Deacon Brodie I tab.II ii: brodie: Badger, it kind of warms my heart. But it’s not mine. moore: Muck! why not? [Ibid.] II tab.IV vii: smith: Deacon! – Badger are you mad? moore: Muck! that’s my motto. [...] Muck! that’s what I think of you. [Ibid.] IV tab.VII i: O muck! Hand out them pieces.